* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
body {
  font-family: Helvetica Neue, Tahoma, Arial, PingFangSC-Regular, Hiragino Sans GB, Microsoft Yahei, sans-serif;
}
a {
  color: #333;
  text-decoration: none;
}
img {
  vertical-align: middle;
  width: 100%;
  height: 100%;
}
ul {
  list-style: none;
}
.ellipsis-2 {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
body {
  margin-top: 21.33333333vw;
  margin-bottom: 12vw;
}
header {
  position: fixed;
  top: 0;
  right: 0;
  height: 22.4vw;
  width: 100%;
  z-index: 999;
  background-color: #fff;
  border-bottom: 1px solid #ccc;
}
header .top_nav {
  height: 11.73333333vw;
  display: flex;
  justify-content: space-between;
  padding: 2.66666667vw;
}
header .top_nav .left {
  width: 17.33333333vw;
}
header .top_nav .left a .icon-bilibili1 {
  color: #fb7299;
  font-size: 8vw;
}
header .top_nav .right {
  width: 45.33333333vw;
  background-color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
header .top_nav .right a:nth-child(1) .icon-sousuo1 {
  font-size: 6.4vw;
  color: #ccc;
}
header .top_nav .right a:nth-child(2) {
  width: 6.4vw;
  height: 6.4vw;
}
header .top_nav .right a:nth-child(3) {
  width: 19.2vw;
}
header nav {
  display: flex;
  height: 10.66666667vw;
  justify-content: space-between;
  align-items: center;
  padding: 2.66666667vw;
}
header nav ul {
  width: 77.33333333vw;
  display: flex;
  justify-content: space-between;
}
header nav ul li {
  font-weight: 300;
}
header nav ul li a {
  padding-bottom: 7px;
}
header nav ul li a:hover {
  color: #fb7299;
  border-bottom: 2px solid #fb7299;
}
header nav ul .icon-chevron-down {
  color: #ccc;
}
.banner {
  width: 100%;
}
.banner ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-evenly;
}
.banner ul li {
  width: 48vw;
  height: 40vw;
  font-size: 3.2vw;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.banner ul li .pic {
  width: 45.86666667vw;
  height: 25.86666667vw;
  position: relative;
}
.banner ul li .pic .txt {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 5.33333333vw;
  width: 100%;
  display: flex;
  color: #fff;
  text-align: center;
}
.banner ul li .pic .txt span .icon-pinglun {
  font-size: 3.73333333vw;
  font-weight: 800;
}
.banner ul li span {
  width: 45.86666667vw;
  /*超出的部分隐藏*/
  overflow: hidden;
  /*文字用省略号替代超出的部分*/
  text-overflow: ellipsis;
  /* 弹性伸缩盒子模型显示 */
  display: -webkit-box;
  /* 限制在一个块元素显示的文本的行数 */
  -webkit-line-clamp: 2;
  /* 设置或检索伸缩盒对象的子元素的排列方式  vertical垂直 */
  -webkit-box-orient: vertical;
}
.footer {
  position: fixed;
  bottom: 2.66666667vw;
  left: 3.2vw;
  width: 93.33333333vw;
  height: 10.66666667vw;
  border-radius: 10.66666667vw;
  background-color: #fb7299;
  text-align: center;
  line-height: 10.66666667vw;
  color: #fff;
}
.footer a,
.footer .icon-bilibili1 {
  color: #fff;
}
